code: def _isunsized(dtype):
      # PyDataType_ISUNSIZED
      return dtype.itemsize == 0
  
file_path: catboost/contrib/python/numpy/py3/numpy/core/_dtype.py
imports: import numpy
label_desc: Use image node_id 5 for calling a global function with example usage: _isunsized(dtype) and returns: unknown